Lighting fixture



P. D. PHILLIPS LIGHTING FIXTURE April 14, 1942.

Filed Oct 4, 1939 Patented Apr. 14, 1942 LIGHTING FIXTURE Paul D. Phillips, Elmhurst, Ill-., assignor to Benjamin Electric Mfg. Company, Des Plaines, 111.,

a corporation of Illinois Application October 4, 1939, Serial No. 297,790

1 Claim.

My invention relates to a lighting fixture construction.

One of the objects of my invention is to provide an improved weatherproof mounting for a glass cover for reflectors.

A further object is to provide a weatherproof cover mounting in which the rim of the reflector is strengthened to prevent buckling in clamping the cover in place.

A further object is to provide a weather-tight cover construction in which the rim of the reflector will have practically a line contact with the sealing gasket.

A further object is to provide a weatherproof cover construction for reflectors in which the reflector is provided with an annular flange to prevent th latch members from slipping off the edge.

Further objects and advantages of the invention will be apparent from the description and claim.

In the drawing, in which an embodiment of my invention is shown:

Figure 1 is an axial section showing the cover and parts of the reflector;

Fig. 2 is a fragmentary bottom view of the construction of Fig. 1;

Fig. 3 is an enlarged detail view showing one of the latches; and

Fig. 4 is an enlarged detail view showing the hinge hook.

Referring to the drawing in detail, the construction shown comprises a concave sheet metal reflector l, a glass cover 2, an annular band 3 in which the glass cover is mounted, a sealing gasket 4 mounted in the annular band, a spring retaining band 5 for holding the gasket in place, a hook-like hinge member 6 secured to the annular band 3 and having a swinging engagement with a bracket 1 secured to the reflector, and a plurality of clamping members 8 secured to the annular supporting band 3 and having a clamping engagement with an outwardly extending flange portion 9 of the reflector.

The reflector may be of any suitable type and may be provided on its inner surface with a vitreous enamel coating or any other suitable reflecting surface. Each latch member comprises a wire bail Hi having a central hinge portion H pivotally mounted in the loop l2 on the supporting strap or bracket l3, two bent arm portions M for extending over the edge of the annular band 3 and rim of the reflector, and a clamping or latching member l5 pivotally mounted at It on the ends of the arms l4 and having a nose portion H for engaging the flange portion 9 of the reflector and having a finger portion [8 for manipulating the latch to effect the clamping action. In order to prevent accidental excess swinging movement of the latch member, it may be provided with stop members [9 which will engage the arms M of the swinging member, Any number of these latch members may be provided, suitably spaced around the annular supporting band.

In order to stiffen the lower edge of the reflector and prevent buckling as the clamping members are moved to clamping position, the lower edg of the reflector is bent downwardly to provide a cylindrical reinforcing portion 20. In order further to strengthen the rim of the reflector and provide a retaining means for the nose I! of the latch member, the periphery of the reflector is turned upwardly to extend to a point above the annular nose-engaging flange 9 so that this annular flange portion 2| which extends above the nose-engaging portion will serve to prevent the nose of the latch from slipping off the edge of the reflector. The gasket-engaging portion 22 of the reflector is relatively thin so that it has little more than line contact with the gasket. This causes a relatively large pressure per unit area between the gasket and reflector when the clamping members are drawn up. The upper edge of the supporting ring 3 may be formed so as to overhang the gasket slightly, as indicated at 23, in order to prevent the gasket from dropping out of the ring when it is squeezed into place by the expandingring 5.

The lighting fixture construction described provides a weatherproof cover mounting in which the rim of the reflector is strengthened to prevent buckling by forming its rim as described. It provides a weather-tight construction in which the rim of the reflector has practically a line contact with the sealing gasket. It provides a weatherproof cover construction for reflectors in which the latch members are prevented from slipping off the rim of the reflector by an annular flange on the reflector.

The hook hinge construction comprises a hooklike strap 6 having its upper end inserted through a slot 24 in the supporting bracket 1 and a screw 25 threaded into the end of the strap 6 to prevent it from accidentally becoming unhooked from the bracket 1. In assembling the hook-like hinge member 6 with respect to the bracket 1, the supporting ring 3 and cover 2 may be swung to a position in which the end of the hook 6 is in registration with the slot 24 in the bracket the securing screw 25 being removed for efiecting this connection. The end of the strap 6 is then inserted into the slot 24 and the supporting band and cover are swung around to bring the parts into the position shown in Fig. 1. The latch members 8 are then swung up, the nose portion I! of each clamping member is placed so asto engage the flange Son the reflector, andthe latch members are then moved into latching position as shown in Fig. 1, in which the pivotal connection [6 is moved past the dead center line of the point of engagement of the nose l"! of the clamp and the hinge connection I I of the wire bail [0.

Further modifications will be apparent to thos skilled in the art and it is desired, therefore,

that the invention be limited only by the prior zontal outwardly extending flang of material width, said flange terminating in a depending flange and an upwardly extending flange, said last mentioned flanges being constructed by forming the material downwardly and then upwardly snugly against itself to form a thinwalled cylindrical rim reinforcement, an annular cylindrical bezel telescoping, over said depending flange and having an inturned flange at its lower edge, a lens supported on said bezel flange, a resilient ring gasket between said lens and said depending flange, a gasket retaining shoulder in said bezel, a resilient ring telescoped into 'said gasket and tending to expand said gasketbelow said shoulder, and a toggle latch hinged onsaid bezel flange and having an intermediatepivotlengaged behind th said upwardly extending rim flange and having a locking arm resting against said reflector when said toggle 20 latched.

PAUL D. PHILLIPS, 

